MEXICO CITY: The World Trade Organisation (WTO) has ruled in favour of Mexico in a trade dispute with the US, saying Washington’s requirement for ‘dolphin-safe’ tuna labels is unfair to Mexican fishermen. The WTO said US labelling rules set different requirements depending on where a fish is caught. It said on Friday that the result is ‘less favourable treatment to Mexican tuna products’. A WTO appellate body reviewed the original ruling of a panel set up to settle the dispute first brought by Mexico in 2009. Friday’s ruling said US dolphin-safe labelling for tuna products still does not meet the requirements set by the dispute panel. Mexico originally argued that US ‘dolphin-safe’ labels were illegal because they restricted trade. Mexico says its tuna production meets international standards preventing accidental capture of dolphins in nets.